Two teams on a warehouse project may ask for a LiDAR scanner and mean different things. A navigation team needs to know where surfaces are so its software can work out the vehicle’s position. A conveyor controls team may only need to know whether a pallet occupies a marked area. Start the specification with the information the controller must receive. It will save a conversation about a scanner that fits the bracket but cannot send the right signal.
When the controller needs distances and angles
Ask the navigation software owner for a sample data message, the expected coordinate convention and a plan for stale readings. The DLD-50D Ethernet measurement scanner sends measurement data over Ethernet on TCP port 2368. It has no discrete NPN, PNP or relay output. The port number tells the integrator where to connect. The software still needs the message format and a way to verify that incoming data is valid for the vehicle’s current position.
Include loss of a data stream in the integration test. If the scanner stops sending measurements while the controller is still running, the controller needs a defined response to stale data. Also ask who will own the software and its settings when a sensor is replaced. Capture that information before purchasing several units for different vehicles.
DLD-50D two-dimensional navigation and mapping scanner
When the controller only needs a zone signal
For a fixed pallet buffer, a PLC may have no use for distances and angles. The DLD05A3 scanner with discrete zone outputs is an example that can report detections through three switching outputs and a separate status signal. The 3N and 3P versions use different output electronics. Choose the version using the PLC input drawing rather than the shape of its connector or the name of a signal in the program.
The USB connection is for configuration. Normal operation uses the documented outputs, so the acceptance questions are about signal state, controller interpretation and what happens when supply or valid status is lost. A zone signal cannot be turned back into the original scan for later analysis. If maintenance expects stored coordinates to investigate a fault, that requirement belongs in the purchase brief.
Separate the orders before the pilot
Ask both teams for one sentence describing the signal and one example of an unavailable signal. The navigation team might ask for a current set of scan measurements with a timeout rule. The conveyor team might ask for a pallet-present bit and a separate indication of device status. The resulting electrical and software work will differ even if both devices are called LiDAR.
Both examples here concern industrial measurement or process sensing. Where a vehicle or machine needs to protect people, specify and validate that safety function separately with appropriate equipment.
DLD05A3 industrial zone detection LiDAR